Having Black Widow betray the team and kill Hawkeye's family, making Hulk eat people and want to rape Freddie Prince Jr. (I didn't imagine that, right?), having Wolverine leave Cyclops for dead so he can get in Jean's pants....
Compared to all that, I don't think the protagonists in the DCEU are in any way unlikeable or mean spirited in the way they've been executed.
I'm pretty sure that had they not shot themselves in the foot and set the shooting date for JL, Snyder would be gone and Affleck would be directing. Not that I think Zack deserves a lot of the venom thrown his way (especially in light of the UC), but I'd feel so much safer with Ben directing. It's why The Batman is the only film I'm 100% sure will be critically and commercially successful.
I think that thing was a train wreck long before Johns was brought in, and even then he didn't have a lot of creative control. I can't imagine that fart cloud Parallax was something he was gung ho about.